Cook bacon until crisp, crumble, and reserve the bacon fat.
Using an electric mixer fitted with paddle attachment mix together the eggs, pumpkin, and bacon fat until well combined. On low-speed mix in the oats a little at a time until well combined. Gradually add 2 ½ cups flour and continue mixing until just incorporated. Add additional flour a little at a time until the dough is no longer sticky; add the bacon and continue mixing until bacon is folded in.
Place dough on a lightly floured surface and need by hand to form a ball of dough; roll out to about ¼ thickness, and cut dog treats with a cookie cutter.
Place on a baking sheet lined with parchment paper and bake for 20 – 25 minutes or until edges start to brown.
Let cool and store in a ziplock bag; use as needed.
I don’t know if it is necessary but I refrigerate these.